---
title: "Migration Hreflang Loss: 31.6% Drop It After Launch - PageSpeed Matters"
url: https://www.pagespeedmatters.com/resources/data-studies/migration-hreflang-loss
description: "Of 1,113 top 1M homepages with rendered hreflang the month before a platform switch, 31.6% had none the month after."
lang: en
---

Migration Hreflang Loss: 31.6% Drop It After Launch (https://www.pagespeedmatters.com/resources/data-studies/migration-hreflang-loss)

Of 1,113 top 1M homepages with rendered hreflang the month before a platform switch, 31.6% had none the month after.

Lost all hreflang after a switch, by number of hreflang tags before

1 to 2 tags 49.5%

3 to 5 tags 33.1%

6 to 15 tags 16%

16 or more tags 19.4%

Source: PageSpeed Matters. HTTP Archive top 1M crawls, Sept 2024 to Sept 2026, rendered homepages.

Homepage hreflang only; inner pages and sitemaps were not checked.

Source: Migration Hreflang Loss: 31.6% Drop It After Launch - PageSpeed Matters (https://www.pagespeedmatters.com/resources/data-studies/migration-hreflang-loss)